three-mile limit
- noun
- Archaic
- Many countries enforce their laws within the three-mile limit.
Examples
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Fishing boats are only allowed to operate inside the three-mile limit off the coast.
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Debates over extending the three-mile limit ultimately led to broader territorial claims.
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The fishing boats were seized for operating inside the three-mile limit of national waters.
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Until the 20th century, the three-mile limit was commonly accepted by many countries.
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The fishing boats operate just outside the three-mile limit.
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The coast guard monitors activities beyond the three-mile limit to enforce fishing regulations.
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Tourists can enjoy various water sports within the three-mile limit of the nation's beaches.
Synonyms
The area of sea near a country's coast that the country controls
Surface Forms
Morphology
three-mile + limit
The phrase is fully compositional: 'three-mile' denotes a distance of three miles and 'limit' means a boundary, so a learner who knows the constituent words can derive that it refers to a boundary three miles from the coast. This measurement + boundary construction is common and follows regular English compounding patterns, making the meaning transparent to B1 learners.
Etymology
Three-mile limit comes from an old rule that a country said it owned the sea as far as a cannon could fire from the shore—about three miles—so the three-mile line became the country's water limit, meaning the 'boundary' of its waters.